/* 页面整体基础 */
    body {
        font-family: Arial, sans-serif;
        margin: 0; padding: 0;
        background-color: #f0f0f0;
        color: #333;
        line-height: 1.6;
    }
    /* 顶部导航 */
    .header {
        background-color: #000;
        color: #fff;
        padding: 10px 0;
        text-align: center;
    }
    .header-nav {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 20px;
        flex-wrap: wrap;
    }
    .header-nav .logo span {
        color: white;
        font-size: 18px;
        font-weight: bold;
    }
    .header-nav .nav-links a {
        color: #fff;
        text-decoration: none;
        margin-left: 20px;
        font-size: 14px;
        transition: color 0.3s ease;
    }
    .header-nav .nav-links a:hover {
        color: #d90000;
    }
    /* Banner */
    .banner {
        width: 100%;
        height: 60vh;
        background-image: url('https://ossweb-img.qq.com/images/cf/act/a20141208version/weaponBg2-top.jpg');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow-x: hidden;
    }
    /* 主内容容器 */
    .main-content {
        max-width: 1200px;
        margin: 20px auto 40px auto;
        padding: 20px 30px;
        background-color: #fff;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        border-radius: 6px;
    }
    /* 标题 */
    h1 {
        color: #d90000;
        border-bottom: 2px solid #d90000;
        padding-bottom: 12px;
        margin-top: 0;
        margin-bottom: 25px;
        text-align: center;
        font-weight: 700;
        font-size: 28px;
    }
    /* 排序表单 */
    form {
        margin-bottom: 25px;
        text-align: center;
    }
    select {
        font-size: 16px;
        padding: 6px 14px;
        border: 1px solid #ccc;
        border-radius: 5px;
        outline: none;
        cursor: pointer;
        transition: border-color 0.3s ease;
    }
    select:hover, select:focus {
        border-color: #d90000;
    }
    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: separate;
        border-spacing: 0;
        font-size: 15px;
        table-layout: fixed;
        word-wrap: break-word;
        border-radius: 6px;
        overflow: hidden;
        box-shadow: 0 0 8px rgb(0 0 0 / 0.05);
    }
    thead tr {
        background-color: #d90000;
        color: white;
        font-weight: 600;
    }
    th, td {
        padding: 14px 10px;
        text-align: center;
        border-bottom: 1px solid #eee;
    }
    tbody tr:nth-child(even) {
        background-color: #fafafa;
    }
    tbody tr:hover {
        background-color: #f6f6f6;
    }
    /* 等级图标和数字容器 */
    .level-container {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }
    .level-container img {
        height: 28px;
        width: auto;
        display: block;
    }
    .level-number {
        font-weight: 600;
        font-size: 16px;
        color: #d90000;
        min-width: 24px;
        text-align: left;
    }
    /* 手机自适应 */
    @media (max-width: 768px) {
        .header-nav {
            flex-direction: column;
            gap: 12px;
        }
        .header-nav .nav-links a {
            margin-left: 0;
            margin-right: 15px;
            display: inline-block;
            margin-bottom: 6px;
        }
        table, thead, tbody, th, td, tr {
            display: block;
        }
        thead tr {
            display: none;
        }
        tbody tr {
            margin-bottom: 20px;
            border-radius: 8px;
            border: 1px solid #ddd;
            padding: 15px;
            background: #fff;
            box-shadow: 0 2px 5px rgb(0 0 0 / 0.03);
        }
        td {
            padding-left: 50%;
            text-align: left;
            position: relative;
            border: none;
            border-bottom: 1px solid #eee;
        }
        td:last-child {
            border-bottom: none;
        }
        td::before {
            content: attr(data-label);
            position: absolute;
            left: 15px;
            top: 15px;
            font-weight: 700;
            color: #d90000;
            white-space: nowrap;
        }
        .level-container img {
            height: 24px;
        }
    }
    /* 页脚 */
    .footer {
        background-color: #222;
        color: #bbb;
        padding: 20px 0;
        text-align: center;
        font-size: 12px;
        margin-top: 40px;
    }
    .footer-links a {
        color: #bbb;
        text-decoration: none;
        margin: 0 10px;
    }
    .footer-links a:hover {
        text-decoration: underline;
    }